Treasure the Severn

Our Vision

A healthy and thriving Severn River for present and future generations.

Our Mission

We engage the local community with the Severn River and its tributaries through advocacy, education and restoration.

Marylanders Grow Oysters

Water Quality Update – Return Of The Orange Blob!

Annapolis – May 26, 2020 (updated 5.29.20).  That ugly red-brown water we’re witnessing in the Severn River right now is an algae bloom, the infamous Mahogany Tide. The top picture at right is what the algae bloom did to the harbor in West Severna Park. The picture below is what the harbor in West Severna […]

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We Invite You to Get Involved

  • Clean up streams & tributaries
  • Grow oysters in your river
  • Remove harmful invasives
  • River Monitoring: Measuring salinity, total dissolved solids, temperature & conductivity

  • Join Our Oyster Team: Become an oyster grower in your river

  • Project Clean Stream: Removing debris from tributaries